$8 million a month in Washington state - that was a year ago.  What do you think that they are making now?  Probably a lot less and maybe getting ready to shut their doors.  Everyday more hashing power comes onboard and difficulty increases - my electric bill has finally overtaken the bitcoins that I generate.  I'm running 10 Antminer S-1's and I thought about getting the upgrade kit to get each one up to 453 GH, but that will only buy me a few months until the electric bill once again surpasses my generated bitcoins.  I think that I'll shut everything down and hope that my 15 bitcoins might be worth something someday like $100k each?  I can always dream!